_stream->Enable (!reference && ffmpeg_subs == 1);
_subtitle_view_button->Enable (!reference && subrip_or_dcp_subs == 1);
_fonts_dialog_button->Enable (!reference && subrip_or_dcp_subs == 1);
+
+ ContentList sel = _parent->selected ();
+ _reference->Enable (sel.size() == 1 && dynamic_pointer_cast<DCPContent> (sel.front ()));
}
void